Display panel, splicing screen, display device, and method for manufacturing display panel

Abstract

The present application provides a display panel, a splicing screen, a display device, and a method for manufacturing the display panel, and relates to a display technology field. In the display panel provided by the present application, a plurality of light-emitting units are mainly arranged in an array on a surface of the display panel corresponding to a frame area so as to visually weaken or eliminate an influence of the frame area on a display effect of the display panel. At a same time, the present application also utilizes a driving circuit layer in an array substrate in the display panel to directly drive the light-emitting units, which simplifies a structure and a driving method of the display panel and is especially suitable for a splicing screen using the display panel as a unit screen.

What is claimed is: 
     
       1. A display panel, the display panel comprising a display area and a frame area, and the frame area surrounding the display area; and the display panel being a liquid crystal display panel;
 wherein the display panel comprises an array substrate, a plurality of light-emitting units, a plurality of driving lines electrically connected to the light-emitting units, and a opposite substrate; the plurality of light-emitting units are arranged in an array on a surface of the display panel corresponding to the frame area so as to at least partially cover a surface of the frame area of the display panel; a portion of the opposite substrate corresponding to the display area is arranged with sub-pixel units; the array substrate comprises a driving circuit layer, and at least part of the driving lines electrically connect with the driving circuit layer so that the drive circuit layer drives the light-emitting units while the drive circuit layer drives the sub-pixel units; 
 wherein the array substrate is disposed on a light-emitting side of the display panel; the array substrate further includes a base substrate, and the driving circuit layer and the base substrate are sequentially stacked along a light-emitting direction; the light-emitting units and the driving lines are arranged on a light-emitting surface of the base substrate; each of the driving lines is arranged with ones of the plurality of light-emitting units thereon; a portion of the base substrate which is at the frame area is defined with via holes extending from the light-emitting surface to the driving circuit layer and further comprises connection lines passing through the via holes; and at least part of the driving lines electrically connect with the driving circuit layer through the connection lines which are arranged one-to-one corresponding to the ones of the plurality of light-emitting units. 
 
     
     
       2. The display panel as claimed in  claim 1 , wherein the plurality of driving lines include a plurality of light-emitting unit scan lines extending in parallel and a plurality of light-emitting unit data lines extending in parallel; and the plurality of light-emitting unit scan lines and the plurality of light-emitting unit data lines are cross-arranged to form first pixel areas corresponding to the light-emitting units. 
     
     
       3. The display panel as claimed in  claim 2 , wherein a plurality of pixel scan lines extending in parallel and a plurality of pixel data lines extending in parallel are formed in a portion of the driving circuit layer corresponding to the display area; the plurality of pixel scan lines and the plurality of pixel data lines are cross-arranged to form second pixel areas corresponding to the sub-pixel units;
 wherein, the plurality of light-emitting unit scan lines at least include first scan lines electrically connected to the pixel scan lines in a one-to-one correspondence with each other; and the plurality of light-emitting unit data lines at least include first datalines electrically connected to the pixel data lines in a one-to-one correspondence with each other. 
 
     
     
       4. The display panel as claimed in  claim 3 , wherein all the pixel scan lines electrically connect with the corresponding first scan lines. 
     
     
       5. The display panel as claimed in  claim 3 , wherein all the pixel data lines electrically connect with the corresponding first data lines. 
     
     
       6. The display panel as claimed in  claim 3 , wherein projections of the first scan lines and projections of the pixel scan lines correspondingly and electrically connected with the first scan lines extend in a same direction in a same plane perpendicular to a positive direction; projections of the first data lines and projections of the pixel data lines correspondingly and electrically connected with the first data lines extend in a same direction in a same plane perpendicular to the positive direction. 
     
     
       7. The display panel as claimed in  claim 6 , wherein the pixel scan lines and the pixel data lines extend into a portion of the driving circuit layer corresponding to the frame area. 
     
     
       8. The display panel as claimed in  claim 7 , wherein the projections of the first scan lines and the projections of the pixel scan lines correspondingly and electrically connected to the first scan lines at least partially overlap in the same plane perpendicular to the positive direction. 
     
     
       9. The display panel as claimed in  claim 7 , wherein the projections of the first data lines and the projections of the pixel data lines correspondingly and electrically connected to the first data lines at least partially overlap in the same plane perpendicular to the positive direction. 
     
     
       10. The display panel as claimed in  claim 3 , wherein the light-emitting unit scan lines and the pixel scan lines are electrically connected to a same gate driving circuit of the display panel. 
     
     
       11. The display panel as claimed in  claim 3 , wherein the light-emitting unit data lines and the pixel data lines are electrically connected to a same data driving circuit of the display panel. 
     
     
       12. The display panel as claimed in  claim 3 , wherein projections of the first pixel areas and projections of the second pixel areas are arranged in an array in a same plane perpendicular to the positive direction. 
     
     
       13. The display panel as claimed in  claim 2 , wherein the plurality of driving lines also include anode lines and cathode lines; the light-emitting unit includes a switching thin film transistor, a driving thin film transistor, and a light-emitting diode; a source electrode of the switching thin film transistor electrically connects with the light-emitting unit data lines, a gate electrode of the switching thin film transistor electrically connects with the light-emitting unit scan lines, and a drain electrode of the switching thin film transistor electrically connects with a gate electrode of the driving thin film transistor; a source electrode of the driving thin film transistor electrically connects with the anode line, a drain electrode of the driving thin film transistor electrically connects with an anode of the light-emitting diode, and the cathode line electrically connect with a cathode of the light-emitting diode. 
     
     
       14. A display device, comprising a display panel, the display panel comprising a display area and a frame area, and the frame area surrounding the display area; and the display panel being a liquid crystal display panel;
 wherein the display panel comprises an array substrate, a plurality of light-emitting units, a plurality of driving lines electrically connected to the light-emitting units, and a opposite substrate; the plurality of light-emitting units are arranged in an array on a surface of the display panel corresponding to the frame area so as to at least partially cover a surface of the frame area of the display panel; a portion of the opposite substrate corresponding to the display area is arranged with sub-pixel units; the array substrate comprises a driving circuit layer, and at least part of the driving lines electrically connect with the driving circuit layer so that the drive circuit layer drives the light-emitting units while the drive circuit layer drives the sub-pixel units; 
 wherein the array substrate is disposed on a light-emitting side of the display panel; the array substrate further includes a base substrate, and the driving circuit layer and the base substrate are sequentially stacked along a light-emitting direction; the light-emitting units and the driving lines are arranged on a light-emitting surface of the base substrate; each of the driving lines is arranged with ones of the plurality of light-emitting units thereon; a portion of the base substrate which is at the frame area is defined with via holes extending from the light-emitting surface to the driving circuit layer and further comprises connection lines passing through the via holes; and at least part of the driving lines electrically connect with the driving circuit layer through the connection lines which are arranged one-to-one corresponding to the ones of the plurality of light-emitting units.